Yarn package support



May 27, 1952 w. 'r. STEARN 4 YARN PACKAGE SUPPORT Filed Oct. 18, 1950 F i N INVENTOR.- WILLIAM STEARN ATTORNEYS.

?atented May 27, 1952 YARN'PACKAGE SUPPORT William '1. Steam, Cumberland, Md., assignor to Celanese Corporation of America, New York,

'N. Y a corporation of Delaware Application October 18, 1950, Serial No. 199,818

This invention relates to yarn package sup- .ports and relates moreparticularlytoconetubes.

- One type of yarn;package that widely employed in the-textile indust fy is :thefcone which comprises a tapered tubular support orcone tube of paper or like material having yarnawindings positioned thereon in such amanner that the ends of the support project from the yarn Wound thereon. During thehandling ofthecones, it is customary to lift the cones byinsertinga finger into the upper or smaller end of the cone tube thereby to avoid all contact with and possible damage to the yarn windings thereon. In unwinding. yarn from the cnes,..the yarn is drawn axially over the smaller end thereof, which end must be smoothto avoid snagging and abrading or even breaking the yarn'during the unwinding operation. smoothing the end of the cone tube is'to curl the material of the cone tube inwardly forming a smooth, rounded lip that projects toward the axis of the cone tube and over which theyarn may pass without damage. While the provision of a lip of this type avoids damage to the;ya-rn, it reduces the size of the opening of the smaller end of the cone tube, making it difficult to insert a finger into said cone tube during the handling thereof.

. It is an important object of this invention to provide a cone tube which will be free from the foregoing and other disadvantages.

A further object Of this invention is to provide a cone tube having a smooth end over which the yarn may pass without damage and having an opening of suflicient size to permit a finger to be inserted therein readily.

Another object of this invention is to provide a cone tube having a rigid end that will be highly resistant to crushing.

Other objects of this invention will be apparent from the following detailed description and claims.

According to the present invention, there is provided a cone tube formed from a tapered tubular blank of paper or the like. At its smaller end, the thickness of the wall of the blank is reduced in such manner as to form a ledge extending around the entirs inner circumference of the blank. The end portion of the blank is then folded inwardly until the tip thereof abuts said ledge and until the adjacent faces of the folded portion contact one another. By reducing the thickness of the end portion of the wall of the blank approximately one-half, it is possible to form a cone tube having a wall of substantially uniform thickness throughout its length.

A preferred embodiment of this invention is shown in the accompanying drawing, wherein Fig. 1 is a cross-sectional View of the cone showing the yarn winding in broken lines, and

One method widely employed for.

.8 Claims. (Cl. 242122) Fig. 2 is a cross-sectional view. of the upper end of a blank-from which the cone tu'benshown in Fig.1is formed. V

Referring now to the drawing, the reference numeral ll designates generally a cone, comprising atapered, tubular cone-tube-IZ having positioned thereon yarn windings l3. The cone tube i2 is formed from a tapered tubular blank 14 comprising four plies ;l;5 of paper. At its smallerend 16, the two inner plies .l 5 of the blank Maresomewhat shorter than the two outer plies of said blank and form a ledge .ll extending around the entire inner circumference of the blank. To form the-cone tubell2, the two'buter plies E5 of the blank l i are folded inwardly until the lip of said outer plies abuts the ledge I1 and the adjacent faces of said outer plies are in contact with one another as shown in Fig; l oftho drawings.

Advantageously, thetwo outer plies I5 of the blank Hi form approximately one-half the total thickness of the walls of said blank so. that after "the outer plies at theupper endportion of the blank are folded the walls of the cone tube 12 will be substantially uniform in thickness throughout their entire length. In this way, there is obtained a cone tube having a smooth end over which yarn may pass without damage and having an opening at its smaller end sufficiently large to permit a finger to be inserted therein readily during the handling thereof. In addition, because of the abutment of the tip of the outer plies l5 against the ledge H, the nose of the cone tube is extremely rigid and highly resistant to crushing.

It is to be understood that the foregoing detailed description is given merely by way of illustration and that many variations may be made therein without departing from the spirit of my invention.

Having described my invention, what I desire to secure by Letters Patent is:

1. A yarn package support comprising a tubular member for supporting yarn windings thereon, said tubular member having an end portion comprising an extension of said tubular member having a thickness less than the thickness of the main body of said tubular member, said extension being bent upon itself.

2. A yarn package support comprising a tubular member for supporting yarn windings thereon, said tubular member having an end portion comprising an extension of said tubular member having a thickness less than the thickness of the main body of said tubular member, said extension being bent upon itself, the re sulting thickness of said end portion being substantially the same as that of the main body of said tubular member.

3. A yarn package support comprising a tubular member for supporting yarn windings thereon, said tubular member being formed of a plurality of plies, the outer plies being longer than the inner plies and forming an end portion having a thickness less than the thickness of the main body of said tubular member, said end portion being bent upon itself.

4. A yarn package support comprising a tubular member for supporting yarn windings thereon, said tubular member being formed of a plurality of plies, the outer plies being longer than the inner plies and forming an end portion having a thickness less than the thickness of the main body of said tubular member, said end portion being bent upon itself, the resulting thickness of said end portion being substantially the same as that of the main body of said tubular member.

5. A yarn package support comprising a tubular member for supporting yarn windings thereon, said tubular member being formed of a plurality of plies, the outer plies being longer than the inner plies and forming an end portion having a thickness less than the thickness of the main body of said tubular member and the tops of the inner plies forming a circumferential ledge, said end portion being bent upon itself so that the tip thereof abuts said ledge.-

the tops of the inner plies forming a circumferential ledge, said end portion being bent upon itself so that the tip thereof abuts said ledge,

the resulting thickness of said end portion being substantially the same as that of the main'body of said tubular member.

'7. A cone tube comprising a tapered tubular member formed of a plurality of paper plies for supporting yarn windings thereon, the outer plies being longer than the inner plies, being substantially one-half the thickness of the main body of said tubular member, and forming an end portion, said end portion being bent upon itself, the resulting thickness of said end portion being substantially the same as that of the main body of said tubular member.

8. A cone tube comprising a tapered tubular member formed of a plurality of paper plies for supporting yarn windings thereon, the outer plies being longer than the inner plies, being substantially one-half the thickness of the main body of said tubular member, and forming an end portion, and the tops of the inner plies forming a circumferential ledge, said end portion being bent upon itself so that the tip thereof abuts said ledge, the resulting thickness of said end portion being substantially the same as that of the main body of said tubular member.

WILLIAM T. STEARN.

REFERENCES CITED The following references are of record in the 

